System.Data.ForeignKeyConstraint.Create C# (CSharp) Метод

        private void Create(string relationName, DataColumn[] parentColumns, DataColumn[] childColumns)
        {
            if (parentColumns.Length == 0 || childColumns.Length == 0)
            {
                throw ExceptionBuilder.KeyLengthZero();
            }
            if (parentColumns.Length != childColumns.Length)
            {
                throw ExceptionBuilder.KeyLengthMismatch();
            }

            for (int i = 0; i < parentColumns.Length; i++)
            {
                if (parentColumns[i].Computed)
                {
                    throw ExceptionBuilder.ExpressionInConstraint(parentColumns[i]);
                }
                if (childColumns[i].Computed)
                {
                    throw ExceptionBuilder.ExpressionInConstraint(childColumns[i]);
                }
            }

            _parentKey = new DataKey(parentColumns, true);
            _childKey = new DataKey(childColumns, true);

            ConstraintName = relationName;

            NonVirtualCheckState();
        }